Egg Binding in Reptiles

Reptile Health Library

11.25.08

Dystocia

Female egg-laying reptiles can produce eggs even when a male is not present, so all females are at risk of being unable to pass an egg that has formed, a condition known as egg binding. Species that produce live young can also have difficulty giving birth, also known as dystocia.

Symptoms and Types

Females that are struggling to pass their eggs or give birth often act restless and repeatedly attempt to find places to dig. Straining and a swollen cloaca -- the common chamber into which the intestinal and urogenital tracts discharge -- may also be observed. As their condition worsens, reptiles become depressed and lethargic and tissue may protrude from the cloaca.

Causes

Egg binding can have a variety of causes including:

Illness

Malnutrition

Lack of a suitable nesting site

Weak muscles from lack of exercise

Misshapen or large eggs

Injuries to the pelvis or other disorders that narrow the passageway for eggs or young

Improper temperature gradients or humidity levels within the terrarium

Diagnosis

Performing X-rays, ultrasounds, or abdominal exams on the reptile can help a veterinarian confirm that eggs or young are present within the reproductive tract and possibly determine why problems have arisen; blood work is also helpful in some cases. Once pregnancy is confirmed, it can sometimes still be difficult to differentiate between normal laying or birthing behavior and dystocia. Occassionally, a female will lay a few eggs and rest for a period of time, but the process should be complete in less than 48 hours. If the reptile is beginning to look stressed or unwell, intervention is necessary.

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